    function archivo() {
        window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, fail);
        window.resolveLocalFileSystemURI("file:///TPUsuario.txt", onResolveSuccess, fail);
    }

    function onFileSystemSuccess(fileSystem) {
        console.log(fileSystem.name);
    }

    function onResolveSuccess(fileEntry) {
        console.log(fileEntry.name);
    }

    function fail(evt) {
        console.log(evt.target.error.code);
    }